Package: linux-image-4.19.0-4-amd64 Version: linux-image-4.19.0-4-amd64 Severity: minor
Dear Maintainer, The multicast/igmp snooping code in the linux bridge is throughly broken: 1. If a program binds to a v4 multicast group a v6 entry is created in the bridge mdb instead 2. As a result multicast appears to be flooded instead of limited to the ports for which there is a known igmp join. The end result is that it sort-a works, but is not anywhere near correct or performing. -- System Information: Debian Release: 9.9 APT prefers stable-updates APT policy: (500, 'stable-updates'), (500, 'stable') Architecture: amd64 (x86_64) Kernel: Linux 4.19.0-4-amd64 (SMP w/8 CPU cores) Locale: LANG=en_GB.UTF-8, LC_CTYPE=en_GB.UTF-8 (charmap=UTF-8), LANGUAGE=en_GB:en (charmap=UTF-8) Shell: /bin/sh linked to /bin/dash Init: systemd (via /run/systemd/system)
